99 (number)
99 is the natural number following 98 and preceding 100.
| |||
| Cardinal | ninety-nine | ||
| Ordinal | 99th (ninety-ninth) | ||
| Factorization | |||
| Divisors | 3, 9, 11, 33 | ||
| Roman numeral | XCIX | ||
| Binary | 1100011 | ||
| Hexadecimal | 63 | ||
Ninety-nine is the ninth repdigit, a palindromic number and a Kaprekar number.
Ninety-nine is also:
- Often used as a qualifier for something which is almost but not quite certain: "Ninety-nine per cent sure."
- The atomic number of einsteinium, an actinide.
- The designation of American Interstate 99, a freeway in Pennsylvania, planned to be extended into New York.
- A card game.
- In the TV show Get Smart, the codename of Agent 99.
- In the title of the Nena song 99 Luftballoons (99 Red Balloons).
- The uniform number of retired NHL player Wayne Gretzky.
- The year AD 99, 99 BC, or 1999.